code: def __init__(self, *exprs):
      self.exprs = exprs
      from ..expressions import unify_all
  
      indices, agg = unify_all(*exprs)
      self.nested = agg
      self.indices = indices
  
file_path: hail/hail/python/hail/expr/expressions/indices.py
imports: from hail.typecheck import typecheck_method, anytype, setof
  import hail
  from typing import List
label_desc: Use image node_id 1 to create a new Aggregation object from inherited base classes: object with example: obj = Aggregation()